Sure.
I think one of the challenges with this newer technology is the scale of investment required and the level of uncertainty that exists about the longer-term trajectory of industrial carbon pricing, and there is also increased risk related to technology, given where they're at in their cycle of development. If it's first of its kind or one of the more immature technologies, it factors into our consideration when we're looking at whether there is too much risk to take on in order to proceed with the investment.